Chinese activist Chen Guangcheng

A handout photo from US Embassy Beijing Press office shows blind activist Chen Guangcheng (2nd L) being accompanied by U.S. Assistant Secretary of State for East Asian and Pacific Affairs Kurt Campbell (front R) and U.S. Ambassador to China Gary Locke (C), in Beijing.

A handout photo from US Embassy Beijing Press office shows blind activist Chen Guangcheng (2nd L) being accompanied by U.S. Assistant Secretary of State for East Asian and Pacific Affairs Kurt Campbell (front R) and U.S. Ambassador to China Gary Locke (C), in Beijing. (Handout/Reuters)

A handout photo from US Embassy Beijing Press office shows blind activist Chen Guangcheng (2nd L) being accompanied by U.S. Assistant Secretary of State for East Asian and Pacific Affairs Kurt Campbell (front R) and U.S. Ambassador to China Gary Locke (C), in Beijing.Handout/Reuters